@Andreas_Hegenberg I'm not sure if it's relevant, but I tried to take your advice here, and create the two BTT actions for moving windows that rely on clicking the mouse (just as a temporary thing until things get fixed). However, it didn't work either.
Interestingly, similar to the global setting for resizing windows with modifier keys, the resizing actions worked perfectly though.
As a result, the bug appears to be impacting the individual actions for moving windows (start/stop, etc.) and the global settings for moving windows with modifiers alone.
Any ideas what might be going on here? Thanks!